awesome/focus.c

137 lines
3.0 KiB
C

/*
* focus.c - focus management
*
* Copyright © 2007 Julien Danjou <julien@danjou.info>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include "util.h"
#include "tag.h"
#include "layout.h"
#include "focus.h"
extern AwesomeConf globalconf;
static FocusList *
focus_get_node_by_client(Client *c)
{
FocusList *fh;
for(fh = globalconf.focus; fh; fh = fh->prev)
if(fh->client == c)
return fh;
return NULL;
}
static FocusList *
focus_detach_node(FocusList *fl)
{
FocusList *tmp;
if(globalconf.focus == fl)
globalconf.focus = fl->prev;
else
{
for(tmp = globalconf.focus; tmp && tmp->prev != fl; tmp = tmp->prev);
tmp->prev = fl->prev;
}
return fl;
}
static FocusList *
focus_attach_node(FocusList *fl)
{
FocusList *old_head;
old_head = globalconf.focus;
globalconf.focus = fl;
fl->prev = old_head;
return fl;
}
void
focus_add_client(Client *c)
{
FocusList *new_fh;
/* if we don't find this node, create a new one */
if(!(new_fh = focus_get_node_by_client(c)))
{
new_fh = p_new(FocusList, 1);
new_fh->client = c;
}
else /* if we've got a node, detach it */
focus_detach_node(new_fh);
focus_attach_node(new_fh);
}
void
focus_delete_client(Client *c)
{
FocusList *fc = focus_get_node_by_client(c), *target;
if (fc)
{
target = focus_detach_node(fc);
p_delete(&target);
}
}
Client *
focus_get_latest_client_for_tag(int screen, Tag *t)
{
FocusList *fl;
for(fl = globalconf.focus; fl; fl = fl->prev)
if(is_client_tagged(fl->client, t, screen))
return fl->client;
return NULL;
}
/** Jump in focus history stack
* \param screen Screen ID
* \param arg Integer argument
* \ingroup ui_callback
*/
void
uicb_focus_history(int screen, char *arg)
{
int i;
FocusList *fl = globalconf.focus;
Tag *curtag = get_current_tag(screen);
if(arg)
{
i = atoi(arg);
if(i < 0)
{
for(; fl && i < 0; fl = fl->prev)
if(is_client_tagged(fl->client, curtag, screen))
i++;
if(fl)
focus(fl->client, True, screen);
}
}
}
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